CN208372797U - A kind of wet process deacidification system - Google Patents
A kind of wet process deacidification system Download PDFInfo
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- CN208372797U CN208372797U CN201820644735.1U CN201820644735U CN208372797U CN 208372797 U CN208372797 U CN 208372797U CN 201820644735 U CN201820644735 U CN 201820644735U CN 208372797 U CN208372797 U CN 208372797U
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- flue gas
- wet process
- depickling
- detergent
- washing
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- 238000000034 method Methods 0.000 title claims abstract description 68
- 239000003546 flue gas Substances 0.000 claims abstract description 108
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 104
- 238000005406 washing Methods 0.000 claims abstract description 52
- 239000003599 detergent Substances 0.000 claims abstract description 44
- 239000012670 alkaline solution Substances 0.000 claims abstract description 36
- 238000001816 cooling Methods 0.000 claims abstract description 33
- 239000000779 smoke Substances 0.000 claims abstract description 29
- 239000007789 gas Substances 0.000 claims abstract description 23
- 238000012545 processing Methods 0.000 claims abstract description 20
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 14
- 239000003517 fume Substances 0.000 claims abstract description 7
- 239000002253 acid Substances 0.000 claims abstract description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 51
- 239000007788 liquid Substances 0.000 claims description 31
- 239000002699 waste material Substances 0.000 claims description 21
- 239000007921 spray Substances 0.000 claims description 17
- 239000000243 solution Substances 0.000 claims description 16
- 238000012856 packing Methods 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 7
- 230000003750 conditioning effect Effects 0.000 claims description 5
- 235000019504 cigarettes Nutrition 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 2
- 238000006386 neutralization reaction Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 239000010813 municipal solid waste Substances 0.000 description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000004056 waste incineration Methods 0.000 description 6
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920003217 poly(methylsilsesquioxane) Polymers 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model provides a kind of wet process deacidification system, comprising: smoke temperature reducer, the smoke temperature reducer carry out cooling processing to high-temperature flue gas and form cooling flue gas；Wet process deacidifying device, the wet process deacidifying device includes the smoke inlet set gradually from top to bottom, washing section, depickling section and exhanst gas outlet, wherein the washing section provides detergent and washs to the cooling flue gas inputted by the smoke inlet, forms washing flue gas；The depickling section provides alkaline solution and carries out depickling processing to the washing flue gas, forms depickling flue gas, the depickling flue gas is discharged by the exhanst gas outlet.Wet process deacidification system according to the present utility model, by entering wet process deacidifying device after making cooling high-temperature fume, it first uses detergent to wash to remove the HCl in flue gas cooling flue gas in wet process deacidifying device, then alkaline solution is used to carry out further depickling processing to the flue gas after washing to remove the SO in flue gas2, guarantee acid gas in flue gas (HCl and SO2) removal efficiency while, reduce the dosage of alkaline solution.
Description
Technical field
The utility model relates to incineration treatment of garbage fields, in particular to a kind of wet process deacidification system.
Background technique
With the continuous expansion of city numbers and scale, the requirement to treatment of urban garbage is higher and higher.Waste incineration is made
For economic, efficient refuse disposal scheme, has the characteristics that innoxious, minimizing, recycling, obtained extensively in China in recent years
General development.Pollutant focuses primarily upon flue gas emission after waste incineration, wherein containing dust, SO2、HCl、NOx, heavy metal, two
The pollutants such as English are disliked, very big pollution can be caused to environment, it is necessary to purify rear discharge up to standard.
For the SO in flue gas2, the sour gas such as HCl, garbage power plant mostly uses semidry method depickling at present, its main feature is that effect
Rate is higher, can meet existing discharge standard (SO substantially250mg/Nm3；HCl10mg/Nm3), dry type is slagged tap, and water process system is not necessarily to
System.But as environmental requirement is increasingly strict, semidry method efficiency is unable to satisfy tightened up discharge standard, while semidry method generates
A large amount of flying dusts increase processing difficulty as dangerous waste, therefore some projects need to use more efficient wet processing.
Different from thermal power plant, HCl content is very high in garbage power plant flue gas, and according to conventional lime lime-gypsum method, HCl's is deposited
The CaCl in making slurries2Content rises, it is suppressed that CaCO3Solution absorption effect, cause wet process efficiency reduction, block risk
Increase.Therefore, waste incineration industry mainly uses NaOH depickling at present, and the salt that reaction generates is soluble matter, high-efficient, nothing
The problems such as blocking, but NaOH cost is much higher than Ca (OH)2Or CaCO3, increase enterprise operation burden.
For this reason, it is necessary to a kind of new wet process deacidification system be proposed, to solve the problems of the prior art.
Utility model content
A series of concept of reduced forms is introduced in utility model content part, this will be in specific embodiment part
Middle further description.The utility model content part of the utility model is not meant to attempt to limit claimed
Technical solution key feature and essential features, do not mean that the guarantor for attempting to determine technical solution claimed more
Protect range.
The utility model provides a kind of wet process deacidification system, comprising:
Smoke temperature reducer, the smoke temperature reducer carry out cooling processing to high-temperature flue gas and form cooling flue gas；
Wet process deacidifying device, the wet process deacidifying device include the smoke inlet set gradually from top to bottom, washing section, take off
Sour section and exhanst gas outlet, wherein
The washing section provides detergent and washs to the cooling flue gas inputted by the smoke inlet, and formation is washed
Wash flue gas；
The depickling section provides alkaline solution and carries out depickling processing to the washing flue gas, forms depickling flue gas, described de-
Acid fume gas is discharged by the exhanst gas outlet.
Illustratively, the washing section includes the first packing layer and detergent spray equipment set gradually from top to bottom.
Illustratively, the depickling section includes the second packing layer and lye spray equipment set gradually from top to bottom.
Illustratively, gas-liquid separator is provided between the washing section and the depickling section.
It illustratively, further include the detergent circulatory system being connected with the washing section, to make detergent spray equipment
In detergent be recycled.
It illustratively, further include the alkaline solution circulatory system being connected with the depickling section, to make lye spray equipment
In alkaline solution be recycled.
It illustratively, further include the tune being connected with the detergent circulatory system and/or the alkaline solution circulatory system
Save pond, to by the detergent circulatory system waste liquid and/or the alkaline solution circulatory system in the waste liquid that recycles into
Row alkali neutralization.
Illustratively, the smoke temperature reducer is flue gas heat-exchange unit, and the flue gas heat-exchange unit includes first entrance, first
Outlet, second entrance and second outlet, the high-temperature flue gas enter the flue gas heat-exchange unit by the first entrance, by heat exchange
It forms the cooling flue gas to be discharged through the first outlet, the first outlet and the flue gas of the wet process deacidifying device enter
Mouth is connected, and the second entrance is connected with the exhanst gas outlet, and the depickling flue gas is changed with the high-temperature flue gas in the flue gas
It is discharged after exchanging heat in hot device through the second outlet.
Illustratively, the temperature of the cooling flue gas is 95-105 DEG C.
Illustratively, the alkaline solution is NaOH solution.
Wet process deacidification system according to the present utility model, by entering wet process deacidifying device after making cooling high-temperature fume,
Detergent is first used to be washed to cooling flue gas to remove the HCl in flue gas in wet process deacidifying device, then molten using alkalinity
Liquid carries out further depickling processing to the flue gas after washing to remove the SO in flue gas2, guarantee acid gas in flue gas (HCl and
SO2) removal efficiency while, reduce the dosage of alkaline solution.
Detailed description of the invention
The following drawings of the utility model is used to understand the utility model in this as a part of the utility model.Attached drawing
In show the embodiments of the present invention and its description, for explaining the principles of the present invention.
In attached drawing:
Fig. 1 is the structural schematic diagram according to a kind of wet process deacidification system of one embodiment of the utility model.
Specific embodiment
In the following description, a large amount of concrete details are given more thoroughly to manage in order to provide to the utility model
Solution.It is, however, obvious to a person skilled in the art that the utility model may not need it is one or more of these thin
It saves and is carried out.In other examples, in order to avoid obscuring with the utility model, for more well known in the art
Technical characteristic is not described.
In order to thoroughly understand the utility model, detailed description will be proposed in following description, to illustrate that this is practical new
Rubbish wet process deacidification system described in type.Obviously, the execution of the utility model is not limited to the technology people in incineration treatment of garbage field
The specific details that member is familiar with.The preferred embodiment of the utility model is described in detail as follows, however other than these detailed descriptions,
The utility model can also have other embodiments.
It should give it is noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the exemplary embodiment of the utility model.As used herein, unless the context clearly indicates otherwise, otherwise singular shape
Formula is also intended to include plural form.Additionally, it should be understood that when using term "comprising" and/or " packet in the present specification
Include " when, indicate that there are the feature, entirety, step, operation, element and/or component, but do not preclude the presence or addition of one
Or other multiple features, entirety, step, operation, element, component and/or their combination.
Now, exemplary embodiment according to the present utility model is more fully described with reference to the accompanying drawings.However, these examples
Property embodiment can be implemented with many different forms, and should not be construed to be limited solely to the embodiments set forth herein.
It should be understood that these embodiments are provided so that the utility model disclosure it is thoroughly and complete, and these are shown
The design of example property embodiment is fully conveyed to those of ordinary skill in the art.In the accompanying drawings, for the sake of clarity, exaggerate layer and
The thickness in region, and make that identical element is presented with like reference characters, thus description of them will be omitted.
Currently, in fume treatment field, for the SO in flue gas2, the sour gas such as HCl, garbage power plant mostly uses at present
Semidry method depickling can meet existing discharge standard (SO its main feature is that efficiency is higher substantially250mg/Nm3；HCl10mg/Nm3)；It is dry
Formula is slagged tap, and water treatment system is not necessarily to.But as environmental requirement is increasingly strict, semidry method efficiency is unable to satisfy tightened up discharge mark
Standard, while a large amount of flying dusts that semidry method generates are as dangerous waste, increases processing difficulty, thus some projects need to use it is more efficient
Wet processing.
Different from thermal power plant, HCl content is very high in garbage power plant flue gas, and according to conventional lime lime-gypsum method, HCl's is deposited
The CaCl in making slurries2Content rises, it is suppressed that CaCO3Solution absorption effect, cause wet process efficiency reduction, block risk
Increase.Therefore, waste incineration industry mainly uses NaOH depickling at present, and the salt that reaction generates is soluble matter, high-efficient, nothing
The problems such as blocking, but NaOH cost is much higher than Ca (OH)2Or CaCO3, increase enterprise operation burden.
In order to solve the problems in the prior art, the utility model provides a kind of wet process deacidification system, comprising:
Smoke temperature reducer, the smoke temperature reducer carry out cooling processing to high-temperature flue gas and form cooling flue gas；
Wet process deacidifying device, the wet process deacidifying device include the smoke inlet set gradually from top to bottom, washing section, take off
Sour section and exhanst gas outlet, wherein
The washing section provides detergent and washs to the cooling flue gas inputted by the smoke inlet, forms washing cigarette
Gas；
The depickling section provides alkaline solution and carries out depickling processing to the washing flue gas, forms depickling flue gas, described de-
Acid fume gas is discharged by the exhanst gas outlet.
It is schematically illustrated below with reference to rubbish wet process deacidification system of the Fig. 1 to the utility model, wherein according to Fig. 1
A kind of structural schematic diagram of the wet process deacidification system of one embodiment of the utility model.
The flue gas that waste incineration generates, which generally first passes through, enters deacidification system after the devices such as bag-type dust are dusted, pass through
The flue-gas temperature of dedusting is still higher, illustratively between 100-200 DEG C, and is referred to as high-temperature flue gas.High-temperature flue gas exists
Depickling is carried out by wet process deacidification system.
As shown in Figure 1, wet process deacidification system provided by the utility model includes smoke temperature reducer 1 and wet process deacidifying device
2, the smoke temperature reducer 1 to high-temperature flue gas carry out cooling formed cooling flue gas, the wet process deacidifying device include from it is lower to
On the smoke inlet 201, washing section 203, depickling section 204 and the exhanst gas outlet 202 that set gradually；High-temperature flue gas by cooling after by
Smoke inlet 201 enters the wet process deacidifying device, and the washing section 203 provides detergent to defeated by the smoke inlet 201
The cooling flue gas entered is washed, and washing flue gas is formed, and the depickling section 204 provides alkaline solution and takes off to washed flue gas
Acid processing forms depickling flue gas and is discharged by the exhanst gas outlet 202.Illustratively, the detergent is water.It is produced after waste incineration
HCl in raw high-temperature flue gas is often compared with SO2Content it is high, since HCl is highly soluble in water, flue gas is first passed around into cooling and is formed
Cool down after flue gas, washing process is carried out to flue gas using the form of injection water, HCl a large amount of in flue gas can be washed out, herein
A small amount of SO in the process2It is washed out, in order to be further reduced SO2Discharge, will pass through washing go out HCl and formed first
The alkaline solution that flue gas further uses depickling section to provide carries out depickling processing, to guarantee SO2Removal efficiency.It is such to set
The form of setting greatly reduces consumed alkaline solution in deacidifying flue gas treatment process.To reduce the cost of system operation.
Illustratively, the alkaline solution is NaOH solution.Can prevent the blocking of deacidifying device using NaOH solution, at the same via
In the case that flue-gas temperature after washing section washing further decreases, SO can further be promoted using NaOH solution2Removing
Efficiency.It is to be appreciated that the present embodiment uses detergent for water, alkaline solution is only exemplary for NaOH solution, appoints
What and can remove SO to absorb the detergent of HCl2The alkaline solution of equal sour gas is suitable for the present invention.
Due to being provided with smoke temperature reducer before wet process deacidifying device, so that the control of wet process inlet temperature is lower, from
And anti-corrosion can be carried out using glass resin inside the wet process deacidifying device, while being further reduced system operation cost
Extend the service life.
Illustratively, the smoke temperature reducer 1 is flue gas heat-exchange unit (GGH), and the flue gas heat-exchange unit enters including first
Mouth 101, first outlet 102, second entrance 103 and second outlet 104, the high-temperature flue gas are entered by the first entrance 101
The flue gas heat-exchange unit heat exchange, forms cooling flue gas, is discharged by the first outlet 102.Illustratively, the cooling flue gas
Temperature be 95-105 DEG C.The first outlet 102 is connected with the smoke inlet 201, and cooling flue gas directly inputs depickling dress
Set carry out depickling.Washing section in deacidifying device, cooling flue gas is further cooled in washing process, and is passed through
Depickling flue gas is formed after washing and depickling to be exported by exhanst gas outlet 202.Exhanst gas outlet 202 is connected with second entrance 103, depickling cigarette
Gas is discharged into atmosphere after second entrance 103 inputs flue gas heat-exchange unit and high-temperature flue gas heat exchange, to avoid generating white haze.Meanwhile
Cooling processing is carried out to flue gas using flue gas heat-exchange unit, system capacity can be reduced, loss reduces the water consumption of cooling requirement, into one
Walk the cost of reduction system operation.Illustratively, the flue gas heat-exchange unit uses corrosion-resistant fluoroplastics, to guarantee that system is long-term
Stable operation.
Illustratively, as shown in Figure 1, washing section 203 includes the first packing layer 2031 set gradually from top to bottom and washes
Wash agent spray equipment 2032.Cool down flue gas by smoke inlet 201 input wet process deacidifying device, wherein the flow direction of flue gas be from it is lower to
On, the first packing layer 2031 and detergent spray equipment 2032 are set from top to bottom in washing section 203, to make as washing
The spray direction of the water of agent and the flow direction of flue gas are on the contrary, reinforce the mixing and mass-and heat-transfer effect of flue gas and water, thus into one
Step enhancing washing effect, further enhances the effect of removing HCl.The effect of first packing layer is to increase reacting for drop and flue gas
Time and flue gas rectification, so that flue gas streamwise (from top to bottom) distribution is more uniform.
Illustratively, as shown in Figure 1, the depickling section 204 includes the second packing layer 2041 set gradually from top to bottom
With lye spray equipment 2042.With the first packing layer 2031 and detergent spray equipment are set from top to bottom in above-mentioned washing section
As 2032, the second packing layer rectifies the washing flue gas provided by washing section, and the alkalinity of lye spray equipment injection is molten
The flow direction of liquid and washing flue gas is on the contrary, reinforce the mixing and mass-and heat-transfer effect of flue gas and alkaline solution, thus into one
Step enhancing removing SO2Effect.Illustratively, the depickling section 204 further includes demisting layer 2043, the demisting layer 2043 to
Absorb the vapor in the depickling flue gas.
Illustratively, as shown in Figure 1, being provided with gas-liquid separator between the washing section 203 and the depickling section 204
205.The gas-liquid separator 205 with to avoid in depickling section 204 react after alkaline solution flow into washing section 203, play by
The effect that solution after the reaction of depickling section 204 and washing section 203 is effectively isolated is isolated in depickling section 204 and washing section 203
In the case of, detergent and alkaline solution therein can recycle and reuse.
Illustratively, as shown in Figure 1, the wet process deacidification system further includes the detergent being connected with the washing section 203
The circulatory system, to provide the circulation detergent in detergent spray equipment, the detergent circulatory system includes detergent
Feedway 3 and the detergent being arranged between the detergent delivery device and the washing section 203 supply circulating pump 301.
At the initial stage of washing section work, the content of HCl is lower in the solution that detergent (such as water) is formed after washing to flue gas, can
To be further utilized, setting the detergent circulatory system so that detergent is recycled, further reduced system operation at
This.After the detergent circulatory system runs a period of time the PH of detergent therein reach 3-4 can as waste liquid into
Row is further processed.
Illustratively, as shown in Figure 1, the wet process deacidification system further include be connected with the depickling section 204 alkalinity it is molten
Fluid circulation, to provide the circulation alkaline solution in lye spray equipment.The alkaline solution circulatory system includes alkali
Flow container 4, the lye supply pump 401 being arranged between alkali liquid tank 4 and depickling section 204, waste liquid tank 5 and setting in waste liquid tank 5 and
Waste drains pump 501 between depickling section 204, the waste liquid tank 5 are connected with gas-liquid separator 205, so that alkaline solution is by spray
Waste liquid tank 5 is flowed into gas-liquid separator is directly over after reaction.Flue gas is washed at 204 pairs of depickling section carries out the first of depickling processing
Further include a large amount of unreacted alkaline solutions in depickling waste liquid after phase, alkaline solution and washing smoke reaction, will include these
The depickling waste liquid of unreacted alkaline solution carries out recycling circulation, is utilized it further, to further reduced system
The cost of operation.The alkaline solution for including in the alkali liquid tank 4 is NaOH solution, after carrying out the circulation of a period of time, shape
At reaction after solution PH between 5-6 when be transferred to waste liquid tank, to carry out liquid waste processing.
After depickling section reacts a period of time, and after the concentration of HCl in the detergent circulatory system reaches a certain level,
Depickling waste liquid and detergent therein can not be further continued for recycling, and depickling waste liquid and the input of detergent waste liquid can be adjusted
Pond, so that the waste liquid containing HCl and removing SO2The depickling waste liquid formed afterwards carried out in conditioning tank in alkalinity and.Illustratively,
As shown in Figure 1, the wet process deacidification system further include in the detergent circulatory system detergent delivery device 3 and/or
The conditioning tank 6 that waste liquid tank 5 in the alkaline solution circulatory system is connected to, conditioning tank 6 connect alkali liquid tank 7, include in alkali liquid tank 7
Ca(OH)2Or CaCO3Solution, conditioning tank is pumped to by lye pump 701.HCl in flue gas is washed by detergent (such as water)
After washing again with include Ca (OH)2Or CaCO3Alkaline solution neutralize, compared to limestone-gypsum method depickling is directlyed adopt, save slurry
Liquid recycles link, solves the problems, such as system jams.
In conclusion wet process deacidification system according to the present utility model, by entering wet process after making cooling high-temperature fume
Deacidifying device first uses detergent to wash to remove the HCl in flue gas cooling flue gas in wet process deacidifying device, then adopts
Further depickling processing is carried out to remove the SO in flue gas to the flue gas after washing with alkaline solution2, guarantee sour gas in flue gas
Body (HCl and SO2) removal efficiency while, reduce the dosage of alkaline solution.
The utility model is illustrated through the foregoing embodiment, but it is to be understood that, above-described embodiment is
Purpose for illustrating and illustrating, and be not intended to limit the invention within the scope of described embodiment.Furthermore ability
Field technique personnel are it is understood that the utility model is not limited to above-described embodiment, and introduction according to the present utility model is also
More kinds of variants and modifications can be made, these variants and modifications all fall within the utility model range claimed with
It is interior.The protection scope of the utility model is defined by the appended claims and their equivalents.
Claims (10)
1. a kind of wet process deacidification system characterized by comprising
Smoke temperature reducer, the smoke temperature reducer carry out cooling processing to high-temperature flue gas and form cooling flue gas；
Wet process deacidifying device, the wet process deacidifying device include the smoke inlet set gradually from top to bottom, washing section, depickling section
And exhanst gas outlet, wherein
The washing section provides detergent and washs to the cooling flue gas inputted by the smoke inlet, forms washing cigarette
Gas；
The depickling section provides alkaline solution and carries out depickling processing to the washing flue gas, forms depickling flue gas, the depickling cigarette
Gas is discharged by the exhanst gas outlet.
2. wet process deacidification system as described in claim 1, which is characterized in that the washing section includes setting gradually from top to bottom
The first packing layer and detergent spray equipment.
3. wet process deacidification system as described in claim 1, which is characterized in that the depickling section includes setting gradually from top to bottom
The second packing layer and lye spray equipment.
4. wet process deacidification system as described in claim 1, which is characterized in that be arranged between the washing section and the depickling section
There is gas-liquid separator.
5. wet process deacidification system as claimed in claim 4, which is characterized in that further include the detergent being connected with the washing section
The circulatory system, the detergent in detergent spray equipment is recycled.
6. wet process deacidification system as claimed in claim 5, which is characterized in that further include be connected with the depickling section alkalinity it is molten
Fluid circulation, the alkaline solution in lye spray equipment is recycled.
7. wet process deacidification system as claimed in claim 6, which is characterized in that further include with the detergent circulatory system and/
Or the conditioning tank that the alkaline solution circulatory system is connected, to by waste liquid in the detergent circulatory system and/or described
The waste liquid recycled in the alkaline solution circulatory system carries out alkali neutralization.
8. wet process deacidification system as described in claim 1, which is characterized in that the smoke temperature reducer is flue gas heat-exchange unit,
The flue gas heat-exchange unit includes first entrance, first outlet, second entrance and second outlet, and the high-temperature flue gas is by described first
Entrance enters the flue gas heat-exchange unit, forms the cooling flue gas by heat exchange and is discharged through the first outlet, described first goes out
Mouth is connected with the smoke inlet of the wet process deacidifying device, and the second entrance is connected with the exhanst gas outlet, described de-
Acid fume gas is discharged after exchanging heat in the flue gas heat-exchange unit with the high-temperature flue gas through the second outlet.
9. wet process deacidification system as described in claim 1, which is characterized in that the temperature of the cooling flue gas is 95-105 DEG C.
10. wet process deacidification system as described in claim 1, which is characterized in that the alkaline solution is NaOH solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820644735.1U CN208372797U (en) | 2018-04-28 | 2018-04-28 | A kind of wet process deacidification system |
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| CN201820644735.1U CN208372797U (en) | 2018-04-28 | 2018-04-28 | A kind of wet process deacidification system |
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| CN208372797U true CN208372797U (en) | 2019-01-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109833765A (en) * | 2019-02-28 | 2019-06-04 | 成都瑞柯林工程技术有限公司 | Absorbing liquid injection system and the flue gas purification system and flue gas purifying method for applying it |
| CN113198308A (en) * | 2021-04-22 | 2021-08-03 | 武汉天源环保股份有限公司 | Sludge drying and waste incineration tail gas waste heat comprehensive utilization system |
-
2018
- 2018-04-28 CN CN201820644735.1U patent/CN208372797U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109833765A (en) * | 2019-02-28 | 2019-06-04 | 成都瑞柯林工程技术有限公司 | Absorbing liquid injection system and the flue gas purification system and flue gas purifying method for applying it |
| CN113198308A (en) * | 2021-04-22 | 2021-08-03 | 武汉天源环保股份有限公司 | Sludge drying and waste incineration tail gas waste heat comprehensive utilization system |
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